Internal-combustion engine.



G. G. LONGARD.

INTERNAL COMBUSTION ENGINE.

APLIOATION FILED FEB. 24, 1913. 1 093 709, Patented Apr. 21, 1914.

L' i a a i I if I 1 6 l 1 .12

1 T-"" "a i g i N t i I WITNESSES INVENTOR naeyroa.

nnrrnn s'rxrns PATENT onrrcn CLARENCE C. LQNG ARD, OF HALIFAX, NOVA SCOTIA, CANADA.

rnrnnnan-coranusrron ENGINE.

Specification of letters latent. Application filed February 24, 1913; .Seria1No.-750,319.

Tea whom it may concern i c Be it known that I, GLARENCE .C. LO'NGARD,

a subject of the King of Great Britain, residingat Halifax, in the Province of Nova Scotia and Dominion of-Ganad ayhave inventednew and useful Improvements in InternaLCombustion Engines of which the following is a. specification.

present invention pertains-to internal combustion engines, and contemplates the provision of means for-assuring the exp-losion chamber being fully occupied by highly explosive mixture precedent. ,to each explosion and for otherwise increasing the elfi,

. In common with internal combustion engines extant, my novel engine comprises a cylinder and a piston; the cylinder being divided by the piston into an explosion chamber 1 and a compression chamber 2. The-explosion chamber is provided with a spark plug 3 or any other suitable ignition device, and is'also provided with an exhaust port 4 and an explosive-mixture inlet port 5; the exhaust port being arranged so as to be uncovered by the piston during thecompletionof the outward traverse thereof, and the port 5 being located in the outer end of the chamber andv being controlled by an outwardly seating valve 6 equipped with a spring 7. a, v

Communicating with the inner part of the compression chamber is a port 8, designed to be connected with a suitable source of explosivemixture supply. Communicating with the compression chamber 2, preferably at a point diametricallyppposite to and in about. the same-plane as the port 8, is an eduction port 9, controlled by an outwardlyopening valve 10, equipped with a spring 11.

as shown.

The port 9 opens into an explosive-mixture container 12 separated by a single wall from the compression chamber 2 and which preferably surrounds said compression chamber Intermediate the inner end of the container 12 and the port 5 is a by-pass conduit 13 which is formed through the wav V ter jacket 14 in the wall ofthe cylinder aid? is separated by a single wall from .the; ex? 1 Patented Apr. 21,1914lff,

plos'ion chamber in the manneril'lustrated;

By virtue of this the explosive militate is heated toa considerable extent before it en-x ters the explosion chamber, as is desirable.

- In the practical operation of my novel en.-

gine, the explosive mixture commences to, enter the'chamber 1 through port 5' as the 1 pisto'n ismoving outwardly over the exhaust port and consequently'the said mixture isenabled to accelerate the discharge of the produetsxof the previous explosion and co cupy the outer portion of the explosion chamber.

mixturethrough port '5' continues until the. compression closes the valve 6. On the sub.- sequent outward movement of the piston, the valve 10 will be held closed by the suction during the drawing'of the explosive mixture into the chamber 2, but notwith-- On the subsequent inward trav f erse of the piston, the inflow of explosive standing this the explosive mixture previously stored under pressure ,in the con tainer 12 willpass through the conduit 13 and port 5 into the explosion chamber and accelerate the passage of products of combustion through the port. 4. It will also be manifest that the storingofthe explosive mixture in the container 12 and conduit 13 will contribute to the-heating of the explo'e sive mixture precedent to the passage of the same into the explosion chamber.

tutes an important feature of my invention, andat this point I would have it undenstoed that while I prefer to arrange said container around and immediately adjacentthe compression chamber, I do not desire to be understood as confining myself to such, arrangement, since without involving. de-

parture from thescope of my claimed infrom the cylinder.

The cylinder may be made in sections or may be cast in one piece or otherwise formed without involving departure from the scope of my claimed invention.

Having described my invention, what I claim and desire to secure by Letters-Patent, is: o The herein described internal combustion vention, the container 12 may separate engine, comprising a cylinder and a piston;

'Fromi this it'follows that the container 12 consti the cylinder being divided by the piston into an explosion chamber and a compres S1011 chamber and having an inletport for" Coplesiot this patent may be obtained for a single wall from'the compression cham r and connected-.through'a port therewith and fur:

- ther having an inlet port a'nd an exhaust port communlcating with the explosion chaniber, a; water acket around the explosionchamber, and a by-pass passage "extending-through said water jacket and connecting the container and the inlet port. v

of the explosion chamber and separated by a'single wall from said chamber; an inrwardly seating .valve controlling the port between the compression chamber and the container and constructed and arranged to be openedjby the outward traverse of the ton and closed by the outward traverse thereof andan outwardly seating valve control ing the inlet port of the explosion chamber and constructed and'arranged to be opened by the outward traverse of the piston and closed by the inward traverse thereof, the exhaust port being relatively arranged to be opened by the piston as the latter approaches the end of its outward traverse, all substantially as and for the purpose setforth;

my hand in nesses.

CLARENCE c. LONGARD. Witnesses:

J. W. RAesDALn, C. FJHIsELKR.

five'cents each, by addressing the Commissioner of Patents, Washington, 10. 0.-

In testimony whereof I have hereunto set presence of two subscribing wit- 

